Apparatus for lightning protection with spring-type electrodes and a power transmission line provided with such an apparatus
A technology for power lines and lightning protection devices, applied to circuits, overvoltage arresters using spark gaps, electrical components, etc., can solve problems such as increased cost, increased labor expenditure, and increased complexity of intermediate electrodes, and achieve low manufacturing and operation cost, low cost effect
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[0016] figure 1 Partially showing a 10kV power line protected against lightning using the lightning protection device according to the present invention. In this embodiment, the lightning protection device is manufactured as a cable segment with an insulator forming the insulating body 1 and metal strands serving as rod-shaped electrodes 6 . A metal pipe serving as the second main electrode 3 is provided in the middle of the cable section across the insulating body 1 , and the terminal end of the cable is used as the first main electrode 2 . The ends of the cable strands (ie the rod-shaped electrodes 6 ) are fastened to the wires 4 of the power line by clamps. The second main electrode 3 is fastened to an insulator, which is arranged at the tower 13 of the power line by means of brackets and wires. An electrode 14 forming a spark gap with the second main electrode 3 (the length of the spark gap is 2 cm for a 10 kV power line) is likewise arranged at the tower 13 . A metal s...
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